Class EucJpCodec.

This codec translates between Unicode and JIS X 0208:1990, encoded with EUC-JP.

The following ambiguities exist:

1. Most variants of EUC-JP assume the range 0x20-0x7E to be ASCII, but one apparently uses JIS X 0201 instead, in which 0x5C maps to U+00A5 (YEN SIGN) instead of the REVERSE SOLIDUS; and 0x7E maps to U+203E (OVERLINE) instead of the TILDE. (Ignored.)

2. (Halfwidth Katakana and IBM/NEC special characters have simply been ignored.)